From where have Linkswitch-PH information about constant current which I want to have on output ? If I have some driver with output current for example 350mA and I want to change it to 300mA, which component values I must change ? From where have this IC information about zero crosing/shape of line voltage ? Sensing of Drain voltage ?
From V pin IC knows only peak value of line voltage and by resistors/current to this pin I can set up only under and over voltage protection. Right ?
And current to FB pin is only convertet output voltage/aux. winding voltage, so it is only output voltage feedback.
Where is output current feedback and how it works ? How is this IC able to keep output current constant ? I am not able to find this information in datasheet or application note.
Thanks for answers.